These changes weren't happening in a vacuum.

这些改变并不是凭空出现的。

And the long-sought holy grail of ubiquitous voice recognition really will eventually happen.

人们长期以来向往无所不在的语音识别最终将成为现实。

Tom, you were where when this was first happening?

Tom，当这件事发生的第一时间你在哪里？

And I know that things don't just happen.

我知道好事不会随随便便发生。

The summer tournament almost did not happen.

夏季锦标赛差点就举行不了了。

The big question is, what are the guarantees that it will not happen again?

重要的问题是，怎么能保证这种事不会再发生？

And that doesn't happen by cramming.

但是死记硬背并不能实现这一过程。

But most experts agree that it didn't happen naturally.

但多数专家认同它并不是自然天成的。

You automatically ask the question how did that happen.

你会自然而然地问，这是怎么发生的。

They have to exercise on special machines every day so that this doesn't happen.

他们必须每天锻炼防止这种情况发生。

Yeah, I called them on my cell phone right after it happened.

是的，车祸刚发生，我就用手机打电话报警啦。

Oh, no, no, no. What a thing to happen.

哦，不不不。这可糟了。

These things did not happen in 1951. They happened in 2011.

这一切并非发生在1951年，而是发生在2011年。

There's a natural concern that that could happen again.

目前外界普遍担忧会再次发生这种情况。

Tell us how this happened, and more importantly, why this happened?

来告诉我们这是怎么发生的吧，当然更重要的是，它为什么会发生？

Right. So how did that happen?

没错。那这是从何开始的呢？

The building was being demolished when the collapse happened.

这座大楼在拆除过程中倒塌。

Kaiba White from the consumer rights group Public Citizen says that just doesn't really happen.

消费者权益组织“公民诉讼组织”的凯巴·怀特表示，但这并未实现。

First of all, what are they and why do they happen?

首先，它们是什么，为什么会发生？

You go ah! You scratch that one out.So that's been happening.

就抓狂了 只能划掉它 这种事一直在发生。